Search: Herschel, John in author 
1830-1839::1839::02 in date 
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Herschel3029

From:
Sir John Herschel
To:
Unidentified
Date:
2] February [1839
Source of text:
unknown
Summary:

Mentions visit of 1 Feb. 1839 from W. H. Fox Talbot. Reports that JH has now 'accomp[lishe]d the whole problem [of photography].' Describes JH's recent results.

Contributor:
John Herschel Project

Herschel8696

From:
Sir John Herschel
To:
Heinrich Christian Schumacher
Date:
[7 February 1839]
Source of text:
NSUB Cod.Ms.Gauss 110
Summary:

Sends HS's observations of magnetic declination and dip near London for forwarding to Carl F. Gauss. Encloses a letter from Edward Sabine.

Contributor:
John Herschel Project

Herschel1338

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[9 February 1839]
Source of text:
RS:HS 17.281b (C: RS:HS 22.2)
Summary:

Considerable comment on procedure for submitting paper to R.S.L. Urges WT to mention JH's method of washing with hyposulfite. Comments on some photographic experiments of WT.

Contributor:
John Herschel Project

Herschel8814

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[10 February 1839]
Source of text:
Science Museum Talbt 1/12 (draft 'much altered': RS:HS 17.281b & C: RS:HS 22.2
Summary:

JH welcomes WT's mentioning JH's method of fixing with hyposulfite. JH has put some of JH's images on display at R.S.L. Mentions JH's recent experiments relating to photography. Comments regarding a paper submitted to R.S.L. by WT and on some experiments of WT.

Contributor:
John Herschel Project

Herschel8815

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[12 February 1839]
Source of text:
Science Museum Talbt 1/13 (ACCS: RS:HS 25.5.12 & C: TxU:H/L-0474; Reel 1055)
Summary:

JH will as WT requests stop mentioning JH's hyposulfite fixing process and await publication of WT's process. Reports in detail on some of JH's experiments relating to photography and to spectrum analysis. [In a P.S. dated 1839-2-13,] JH states: 'I have discovered your secret of fixing [or its] equivalent.'

Contributor:
John Herschel Project

Herschel3861

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[13 February 1839]
Source of text:
unknown
Summary:

In reply to WH's 1839-2-8 inquiry, JH believes that 'Skotodynamics' (the propagation of light waves) is a new line of research. Caroline Herschel is ecstatic about her Royal Irish Academy medal.

Contributor:
John Herschel Project

Herschel8644

From:
Sir John Herschel
To:
William Swainson
Date:
[14 February 1839]
Source of text:
Linnaean Society
Summary:

Thanks WS for his pamphlet on the 'Statistical Zoology of Britain.' Comments on the dynamics of animal and plant ecology.

Contributor:
John Herschel Project

Herschel6026

From:
Sir John Herschel
To:
Francis Baily
Date:
[15 February 1839]
Source of text:
RS:HS 3.151 (C: RS:HS 25.8.16)
Summary:

Approves of the arrangements made by FB regarding the loan of the theodolite.

Contributor:
John Herschel Project

Herschel9103

From:
Sir John Herschel
To:
William Whewell
Date:
22 February [1839]
Source of text:
TC, Camb. Add. Ms.a.20736 (C: RS:HS 22.3)
Summary:

Requests WW and George Peacock to judge the appropriateness of expending B.A.A.S. funds for some instruments for the Breslau Magnetic Observatory. Mentions other matters relating to the meteorology committee.

Contributor:
John Herschel Project

Herschel6028

From:
Sir John Herschel
To:
Francis Baily
Date:
[26 February 1839]
Source of text:
RS:HS 3.153 (C: RS:HS 25.8.17)
Summary:

Will come up to town so that they can work on Thomas Maclear's four foot scale standard. News of the Glasgow Observatory.

Contributor:
John Herschel Project

Herschel55

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[27 February 1839]
Source of text:
RGO 6.368.620
Summary:

Thanks GA for all his efforts on Thomas Maclear's behalf [see GA's 1839-2-25]; comments on some developments in photography, including the work of Nicephore Niepce done in approximately 1826.

Contributor:
John Herschel Project

Herschel8816

From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[28 February 1839]
Source of text:
Buckland, Talbot, 49 inc
Summary:

Invites WT to mention JH's hyposulfite process to J. B. Biot. Recounts JH's recent experiments.

Contributor:
John Herschel Project
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